Cement-block mold.



A. D. MILLER.

CEMENT BLOCK MOLD.

APPLICATION FILED 1AN.28.1915.

Patented J an. 25, 1916.

ALBERT D. MILLER, OF GOSI-IE'N, INDIANA.

CEMENT-BLOCK MOLD.

Specification of Letters latent.

iatented Jan. 25, M3 116.

Application filed January 28, 1915 Serial No. 4,881.

To all iii/tom it may concern.

Be it known that l, ALBERT D. MILLER, a citizen of the United tates, residing at Goshen, in the county of Elkhart and State of Indiana, have invented certain new and useful Improvements in Cement Block Molds; and I do declare the following to be full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in molds for casting cement blocks and more particularly to those adapted to constructing blocks used in the construction of silos.

The object of the invention is to provide a comparatively simple and inexpensive mold of this character, yet one which will be very eflicient in operation and which will effectively support a reinforcing rod to be embedded in the completed block.

With the above object in view, the invention resides in certain novel features of construction and combination hereinafter more fully described and claimed and shown in the drawings wherein Figure 1 is a side elevation of a cement block mold constructed in accordance with my invention; Fig. 2 is a top plan view thereof; Fig. 8 is an end view; Fig. 4 is a transverse section as seen on the line 47-4: of Fig. 1; and Fig. 5 is a central vertical longitudinal section.

In this drawing, constituting a part of the application, the numerals 1 and l designate broadly a pair of upright end walls. The wall 1 is formed in a lower rectangular section 2 having laterally extending flanges 3 on its upright edges and an inwardly struck upright head i at its center, combined with an up er rectangular section 5 having laterally bent flanges 6 on its upright edges and an upright bead 7 formed at its center by striking the material from which it is constructed, inwardly. As most clearly seen in Fig. 4, the upper section 5 rests upon and rises from the lower section 2. and the abutting edges of both sections are provided with notches 8.

The section 1 is composed of upper and lower sections 5 and 2 respectively, these sections being constructed in the same manner as the sections 5 and 2, and having their abutting edges notched as disclosed at 8' in Fig. 4. The notches 8 and 8 are so located as to cause them to be in longitudinal and horizontal alinement, in which position, they are adapted to receive and support the bent ends E of a rod ll, which is looped as seen in Fig. 2, this red serving not only to reinforce the completed block, but acting as means for connecting said block to an advance block, when suitable staples (not shown) are employed. in the present case, the terminals of the rod it are shown as bent laterally to anchor them in the completed block.

Connecting the two end walls 1 and 1, is a pair of longitudinally extending upright side walls 10, these walls being here shown as curved throughout their lengths to produce a block of a shape appropriate for the construction of a silo, the side walls being detachably connected to the upper and lower sections of the end walls by hooks 11 which are pivoted to said side walls and engage studs or other appropriate keepers 12 on the end walls. By reference more particularly to Fig. 2, it will be seen that the side walls 10 are embraced by the flanges of the end walls, thereby effectively retaining all parts in their respective positions.

In applying the device to use, it is set up as seen in the drawings and the rod R or an equivalent reinforcing device, is supported in the manner disclosed in Fig. 5. The plastic material such for instance as cement, is then packed into the mold after which, the

atter may be disassembled thus leaving the completed block intact with the reinforcing rod extending through the center thereof and projecting beyond the ends thereof. Due to the formation of the end walls 1 and 1, it will be obvious that upright grooves will be formed in the ends of the completed block, these grooves being adapted to register when the va-ious blocks are applied to use, whereby they may receive liquid cement or another appropriate form of binder.

have found that a wall constructed of blocks made in the manner ab ve described will be aifected very little by expansion and contraction of the rods R, since the aforementioned staples (not shown) compensate for this by springing the necessary amount.

From the foregoing description, taken in connection with the accompanying drawings, it will be seen that a very simple device has been provided for carrying out the object of the invention, yet that such device possesses a number of advantageous features. It will be understood, however, that the shapeand design of the numerous Walls of the mold could Well be altered Without departing from the spirit of the invention as claimed.

1 claim A mold comprising a pair of spaced upright rectangular end Wall sections having laterally bent flanges on their upright edges and notches in their upper edges to receive therein a reinforcing rod, an additional pair of upright rectangular end Wall sections resting one on each of the aforesaid sections and having laterally bent flanges on their upper edges alining With the aforesaid flanges and notches in their lower edges .5 registering With the aforesaid notches, a pair of longitudinally spaced parallel side Walls bearing at their ends against the inner sides of the upright flanges, and independent fasteners uniting the independent end Wall sections With the side Walls.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

ALBERT D. MILLER.

Witnesses:

M. H. Fromm,- D. G. LEHMAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. C," 

